Brush handle and connecting means therefor



ATTORNEY6 Nov. 15, 1949 R. s. EISNER ET AL I BRUSH HANDLEAND CONNECTING MEANS THEREFOR Filed Oct. 14, 1948 2 Sheets-Sheet l Nov. 15, 1949 R. S ElSNER ET AL BRUSH HANDLE AND CONNECTING MEANS THEREFOR Filed Oct. 14, 1948 2 Sheets-Sheet 2 ATTO aways Patented Nov. 15, 1949 2,488,0i5e V I BRUSH HANDLE AND, CONNECTING MEANS THEREFOR Rabat s. Eisner, Yeea Bali-a: Schoenhqlz,fF1us'liing, N. Y as and rnesi ie'a's'sigiiiiielits, tdfliiil ltoh &.?G0odm ai1 Col, Belleville, N. J a cor iorationof New York 'Apiilication'october 14, an, sea-arm. 54,452

'This application is a contihuatiohdmpart of our cop'ending application Serial No. 751,538 filed "May '31, 1947, now Patent No. 2,454,553, dated November 23, 1948. This invention relates to brushes for'applyingcoating materials, for cleaning, etc., and particularly to handles for such brushes and to 'mahs for detachably securing the brush handle to the brush head "or base, a part of which detachable securing means is ear- "ried by the handle. While the handle and the detachable connecting or'securin'g means "of the 'invention'are particularly'adabted for use in fountain, liquid-applying brushes bf the general type disclosed and claimed in our aforesaid ap'pliation, they also are adapted for use with the more common form of liquid-'apijlying brushes,

as well as with brushes for cleaning, scrubbing "and other purposes.

It frequently s desirable "to Have the handle of a brush dtachablyconifctable to the brush head or base, so that the handle may be manufactured or produced separately from the "brush proper, and the two'pa'its then connected; inns, a'worn brush may be disconnected frointheh'andle and replaced by a new one. Also, 'in reantam, li uid-applying brushes, it is desirable that the handle be aisconneetame from the brush head or base in order to 'peimit better meaning of the passagesin the brush head and handle through whieh the liquid passes.

In accordance with the "present "invention "a 'ile w TO iIh of brush hafiale iS iifiillidd lill'ieieby it may be made separately from the other parts or the brush and sb'detaehamy connected tofthe betweeil the tWOQSO that ilS 'bf thebflish thei e will be no relative movement between 'themwhl'ch would interfere with the normal use 'or the brush or revent the user fiofii some a fiist olass man-like job. The connecti n also is one is of simple construction and requires only a iew relatively inexpensive parts, and which will neither be in the way of the users hands, nor will present eitefi'sioh-s oi obtfudti6nS will prevent normal handling and use of the More specifically, the brush 'hahdle has the end thereof which bears againstthe brush head bifurcated to provide a central spate within tvliieh cooperating, separable connecting means earned by the head of the brush and the handle, rsbec- Itively, are positioned. Thus the cooperating, seba-rable connecting means may be caused to lie in longitudinal alignment with the borti'oh of the handle which normally graspedwhe'nthe brush is being used, so that they will not 'lh anywise 2 interfere with tl'ie'nbrmal graspingof the brash 'han'iilefhor with the use of "the The icon;- jneting means aresiich that the distal 'ends'of it' 'e s a'e n ire' i jee 'tibr bf. handle ma be*b'niught-'feiiiii"ii e131 into firin, rigid contact with 'thebrush head. I Interlocking "means between {the brush head and the spaced inner nds of the handle are provided, to brevent relative rotation between the handle-and the brush head. g

When the cooperating, separable connecting means of the inv'ention are to be "used to conne'ct the nanme to t 'br ushhead or a fountain, liquid-applying brush, they are so 'iormed that the liquid to be supp ied to the brush may pass through them todistributihg passages in, or carried the heador'base'of the brush.

The invention w'illbe further described incohn'e etion the accompanying drawings, but *it is to be understood that such further description is by way offexemplification and the inv'entioh is not limited thereby.

In the 7 g a Fig. i is a longitudinal sectional view on liiie If-l "of Fig. 2 through a paint brush of the fountain, Iicjuid-ahplying type embodying one forih of the new "handle and detachable connecting an i Fig. 2 ma sectional view on line 2-2 of Fig. 1'; v Fig. 3 is a longitudinal sectional view on line 3 3 or Fig. 1%, of ianiodified form of the new handle and detachable connecting means;

Fig. 4 is an enlarged sectional view 'on line ';4- r and a Fig.; 5 i's'a plan 'v'iewo'f the brush head detached fitimth'ehaiidle. I, Y

Referring "first to the form 'of detachable coh- 'neotihg means shown in Figs. 1 and 2, it 'willbe seamen they are shown in conjunction with a fountain, "liquid-apiolying -brush of the wide, flat type, such as may be used for painting fiat surfaces su'eh as 'walls, ceilings or the like. fI -hfe brush there shown includes a head [0 of wood or other suitable material having a passage ll extending lengthwise thereof, that is, transversely of the brush. The passage has an inlet 12 for liquid extending-through onefwall of the head, and two outlets i3 and 13 leading from the ends of the passage ll through the wall of the head opposite that through which the inlet i 2 extends. A main body [4 of long bristles of hylon, or the like, has one end thereof embedded in or mounted on the wall of the base through which the outlets p -a. A. l, l we Flexible con duits l ahd lfi of synthetic rubher or other oil-resistant plastic, are connected 3 to the head 10 at the outlets l3 and I3 in any suitable manner. The outer ends of the flexible conduits l and 16 are attached to a thin, flat chamber or manifold l1 embedded in the body of the bristles l4, inwardly from its outer or distal end at about the line along which the bristles are flexed when the brush is used in a normal manner. The chamber I1 is provided with a lengthwise passage Hi from which a plurality of small orifices [9, of about one millimeter in diameter, extend outwardly and through the wall facing the free end of the bristles. Paint or other coating material may be supplied under pressure to the passage H in the head and flow through the tubes l5 and IE to the passage IS in the chamber and then through the small orifices I9. A thin, relatively short body of bristles 20 has one end thereof embedded in or are mounted on the outer wall of the chamber 11 around the orifices 19. The body of bristles 20 serve as a distributing means and fill the cavity among the long bristles that otherwise would be caused by the presence of the chamber I! and by the tendency of the long bristles to stick together when wet. The thin body of bristles 20 and the outer ends of the bristles of the main body I4 together constitute the liquid-applying means of the brush.

The handle H of the brush is formed with a passage 22 for liquid to be, supplied to the bristles of the brush. The inner end of the handle is bifurcated to form head-engagin portions 23 and 24 which are spread apart to form a space 25 between the head and the handle and in longitudinal alignment with the main portion of the handle. The inner end of the handle is provided with a coupling nipple 25, which is threaded into the end thereof between the spaced headengaging portions 23 and 24, and has a passage 27 aligned with the passage 22. The outer end of the inlet l2 through the brush head is enlarged to receive the distal end of the coupling nipple and the base has an externally threaded flange 2? around th inlet opening.

The spaced portions 23 and 24 of the handle are firmly and rigidly held against the brush head by a collar or coupling nut 28 which is mounted to encircle the coupling nipple 25 and is threaded onto flange 21'. When the coupling nut is secured tightly onto the flange, it acts against a circumferential shoulder on the coupling nipple to force the latter against a seat in the brush head. Preferably a gasket 29 is interposed between the collar and the shoulder on the coupling nipple to prevent leakage of liquid passing through the handle into the brush head. As the cooperating, separable fastening means are located in the space between the head-em gaging portions 23 and 24 of the handle, access to the coupling nut 28 in order to connect or disconnect the handle readily is obtainable at the sides of the handle, as will cearly be seen in Fig. 2.

Pins 35 extending from the head-engaging faces of the spaced portions 23 and 24 of the handle are received in aligned openings in the head, and properly align the handle of the brush head and prevent relative rotation between the handle and the brush head which would give an insecure grip and might interfere with the paint or other coating material being applied in a firstclass, workmanlike manner.

The handle is formed at its free end with a threaded section 3|, by which a length of tubing 32 may be connected to the handle. The tub- 4 ing leads into a reservoir in which the coating fluid is maintained under pressure.

The flow of fluid from the reservoir through the handle of the brush is controlled by a valve mounted in a passage 33 through the handle. The valve includes a body 34 and a stem 35 which extends through the body and has a valve head 35 which seats against a valve seat formed in the body to cut off flow through passage 37 to the body. The stem has a button 38 at its outer end, and a spring 39 encircling the stem acts on the button to hold the valve normally closed. The valve body 34 is held in passage 33 between a pair of discs 40 and 4| threaded into the passage.

The form of brush shown in Figs. 3, 4 and 5 is of the same general type as the brush shown in Figs. 1 and 2 and comprises a head or base of wood or other suitable material having a main body of bristles 42 mounted at one end on a face thereof. The opposite face or side of the brush head has a recess 43 formed therein for receiving bifurcated end portions 44 and 44 of a handle 45.

An elongated inner feed block 46 is positioned within and extends longitudinally of the main body of bristles against the face of the brush head opposite that from which the handle extends. The feed block 46 has a passage 41 extending lengthwise thereof through which a liquid to be applied by the brush may pass to outlets communicating with the inner ends of flexible conduits 48 and 48'. The outer ends of the flexible conduits connect with the opposite ends of an outer feed block 49. The outer feed block has a lengthwise passage 50 through which coating liquid may flow to a plurality of small orifices 5| in the face of the feed block facing the ends of the bristles. The orifices 51 are surrounded by a second, or auxiliary thin body of bristles 52 which receive paint flowing through the orifices 5| and convey it to the outer ends of the main body of bristles. The manner in which the flexible conduits 48 and 48 are connected to the inner and outer feed blocks forms no part of the present invention. The same has been more fully disclosed and claimed in copending application Serial No. 54,453 filed October 14, 1948.

The inner feed block 46 has an internallythreaded boss 53 formed on the face thereof opposite that through which the outlets leading to the flexible tubing extend. The boss extends into a central passage 54 through the brush so that the main portion of the face from which the boss extends may lie flat against the inner face of the brush head.

A coupling nipple 55 extends through the passage 54 and has its lower end threaded into the boss 53. A nut 55' threaded onto the coupling member or nipple 55 securely holds the coupling member or nipple to the brush head by clamping a portion of the brush head between it and a circumferential flange 60 which extends around the lower end of the coupling nipple and engages the brush head beneath a shoulder 6! of the central passage. The upper end of the coupling nipple bears against a packing ring 56 interposed between it and a seat in the inner end of a couplin member 51 which is threaded into the inner end of a bore or liquid passage 58 extending lengthwise of the handle. The coupling member 5? has a shoulder portion which abuts the handle around the inner end of the lengthwise passage 58 through the handle to provide a space to re- 'Eeiveah inturnederidof'a eoupling nut or sleeve "59 which 'isthreadedonto the outer end portion ofthe coupling nipple 55. Hence, the threading "ofthe coupling 'nut'ont'o 'theiouter end of the fcoupling nippleeausesthe spacedend portions 44 and id of the handle'to be pulled towards the brush head and to be firmly clamped against it in therecess 43. The outside of the coupling "nut is knuile'd for better gripping while thread- :ingit onto the couplingnipple, and, asshown in Fig. '3, the diameter of' the coupling nut is greater than the thickness of the'end portion of the handle, so that it'maybe readily gripped be- "tween ones fingers for threading it onto'and off "er the coupling nipple, as desired.

Therecess 458 in the outer face ofthe brush head has lateral extensions 53 and 53 313 each "en'dwhich'are of substantially the same shape "and size asthespac'edendportions 3d and i i, so thatj when the'ha'ndle is clamped to the brush head'thespaced portions will be received in the extensions 43* and t3 and relative rotation betweenthe handle and the head of the brush preyented.

The handlenlay be made of a single piece of plastic,wood, or light metal such as magnesium oraluminumor one of theiralloys, but preferably *is made in two pieces,- an inner piece 62 of mag- {rie sium 'oraluminum, and an outer piece of wood "-or plastic.

A lining tube 63 of-lig-ht metal'extends through the fluid passage 58in the brush handle and has itsinner'end threaded into an extension 62 -onthe-outer endof the metal handle section 52.

Theouter end-of the metal tube is threaded into.

a coupling nipple 6t and has the end thereof which extends-slightly beyond the outer end of the couplingnipple peened over toprevent removal of the nipple. The coupling nipple G4 has its outer surface threaded to receive a coupling "on the end of a length of tubing extending from --a reservoinso that the liquid to be appliedinay beforced under pressure through such tubing, the handle, the head of the brush and the feed "blocks and their connecting flexible conduits to the auxiliary body of bristles 52. The coupling nipple, in addition to forming means for connectinga liquid conducting tube to the handle of the brush, also functions to clamp the outer portion of the handle tightly against the outer end of the metal handle portion 62.

The flow of coating liquid through the handle *is controlled by a valve carried by the metal portion 62 of the handle. This valve includes a bushing 65 which is press-fitted into a bore extendingtransversely through the handle portion 62 and a rotary plug 58. The bushing has openings 61 aligned with the liquid passage which extends '"lngthwise of the handle, and the rotary plug has an opening 58 which may be brought into and (jut of alignment with the openings 51. Preferably the opening 68 is slightly elongated in a cir- "cumferential direction. The rotary plug 56 has "an extension'til which passes through an end -"closure disc It and is flattened to receive a fin ger-actuatable lever or handle I I. The side of the "valve handle nearest the handle of the brush has an extension I2 which moves in an arcuate groove 13 and limits the movement of the valve handle when itreaches its'iully open and its fully closed "positions. A packin disc'M is'interposed between the end closure disc 5% and the body portionof the rotary plug.

In each form ofthe invention-described above iilie haridle iorms a 'complete unit of itself so that it maybe manufactured indepenaeau pr the main portion of 'the bi'ush and subsequently attached thereto, thereby enabling the handle and brush proper to be ebtained -from different sources for assembly. Also,'-a's the handle can readily be detached from the remainder {of the brush, a worn brush mayberemoVed-and anewone "attached to the handle, with resultingsavings in the cost of a new brush.

The positioning {of the cooperating, separable fastening means in the space between the spaced bifurcated portions of the handle between 'the handle and the brush head getsthemout-of "the way so; that they donot intei'fere with normal use of the brush, *y'etleavesthem ina position which is readily accessiblefor manipulation.

The interlocking rnea-n's between the space'd b'ifurcated inner portions-oithe handle ensures that when the handle-is'attached to the brush head no relative movement will-take place between them which woulddr'iterfere with-normal use of the brush.

We claim:

1. A handle fora brushhaving the-'"end'thereof which is to be connected to thebrush'biiurcated to provide'spaced' portions; the distal 'ends of which are constructed and arrangedto'bear firmly against the head of the "brushfanda'part oi cooperating, separable connecting means for firmly holding the" distal ends "of the" spacedfportions againsta brush head carried by the "handle and positioned in the spacebetween said spaced portions, said part "of the cooperating, separable connecting means'being adaptedto cooperate'with a supplemental portion ofthe separable con-necting means carried "by-"the brush headto fixedly and immovably connect the distal ends of the spaced portionsof the handle to the brush head.

2. A- handle for "a brush "having 'the'end thereof which is tobe connectedto-the-brush bifurcated to provide spacedfportions, the distalends of which are constructed and *arranged tobear firmly against thehead or the br'ushfarida part of cooperating, separable connecting means for firmly holding the fdistalends of the spacedportions against a brush head carried by the handle and positioned in the space between-said spaced portions; said patter the cooperating, separable connecting means being adapted to cooperate with :a supplemental portionof the 'separableconnec'ting means carried bythe brush head to fixedly and immovably connect the distal ends of the spaced portions of the handle to the' brushhead, the distal ends of said spaced "portions -of"the handle having parts engageable with the brush head to interlocktherewith and prevent relative rotationof the handle and brush head'about the longitudinal axis-of the handle.

3. A handle for a iountain,"liquid applying brush having the end thereof Which is to be connected to the brush bifurcated to provide spaced portions, the distalends of which are constructed and arranged to bear firmly against'the head of the brush, and apart of cooperating; separable connecting means for firmly holding the distal ends of the spaced portionsagainst a brush head carried by the handle and-positioned in "the space between said spaced portions of the handle, said part of the cooperating, separable connecting means being adaptedto cooperate with a supplemental portion of the separable connecting means carried by the brush headto fixedlyand immovably connect the distal ends of thespaced p'ortions of the handle to thebrush-headg saidpart'ofthe -cooperatingf separable connecting means "carried 7 by the handle having a passage therethrough for the fiow of liquid to the head of the brush.

4. A handle for a fountain, liquid-applying brush havin a liquid passage extending lengthwise therethrough, said handle also having the end thereof which is to be connected to the brush bifurcated to provide spaced portions, the distal ends of which are constructed and arranged to bear firmly against the head of the brush, and a part of cooperating, separable connecting means for firmly holding the distal ends of the spaced portions against a brush head carried by the handle and positioned in the space between said spaced portions of the handle, said part of the cooperating, separable connecting means being :adapted to cooperate with a supplemental portion of the separable connecting means carried by the brush head to fixedly and immovably connect the distal ends of the spaced portions of the handle to the brush head, said part of the cooperating, separable connecting means carried by the handle having a passage therethrough communicating with the liquid passage in the handle so that liquid may be supplied through the handle and the part of the cooperating, separable connecting means carried thereby to the head of a fountain, liquid-applying brush.

5. A handle for a fountain, liquid-applying brush having a liquid passage extending lengthwise therethrough, said handle also having the end thereof which is to be connected to the brush bifurcated to provide spaced portions, the distal ends of which are constructed and arranged to bear firmly against the head of the brush, and a part of cooperating, separable connecting means for firmly holding the distal ends of the spaced portions against a brush head carried by the handle and positioned in the space between said spaced portions of the handle, said part of the cooperating, separable connecting means being adapted to cooperate with a supplemental portion of the separable connecting means carried by the brush head to fixedly and immovably connect the distal ends of the spaced portions of the handle to the brush head, said part of the cooperating, separable connecting means carried by the handle having a passage therethrough communicating with the liquid passage in the handle so that liquid may be supplied through the handle and the part of the cooperating, separable connecting means carried thereby to the head of a fountain, liquid-applying brush, and a valve for controlling the flow of liquid through the passage in the handle.

6. A handle for a brush having the end thereof which is to be connected to a brush bifurcated to provide spaced portions, the distal ends of which are constructed and arranged to bear firmly against the head of a brush, a coupling :member carried by the handle in the space between said spaced portions, and a coupling nut rotatively mounted on said coupling member and adapted to engage a threaded portion carried by the head of a brush for connecting the handle to such a brush head.

7. A handle for a brush having the end thereof which is to be connected to a brush bifurcated to provide spaced portions, the distal ends of which are constructed and arranged to bear firmly against the head of a brush, a coupling member carried by the handle in the space between said spaced portions, a coupling nut rotatively mounted on said coupling member and adapted to engage a threaded portion carried by the head of a brush and connecting the handle to such a brush head, and interengaging parts carried by the couplin member and the coupling nut effective on screwing the coupling nut onto a threaded portion carried by the brush head to bring the distal end portions of the bifurcated portion of the handle into firm engagement with the brush head.

8. In a brush, the combination of a brush head having bristles mounted at one end thereon, and extending therefrom in a generally parallel group, a handle having one end bifurcated to provide spaced portions, the distal ends of which engage the brush head, and cooperating, separable connecting means carried, respectively, by the handle and the brush head, said cooperating separable connecting means being positioned between said spaced portions of the handle, between the handle and the brush head, and detachably connecting the handle to the brush head and holding the distal ends of the bifurcated portions in fixed and immovable engagement with the brush head.

9. In a brush, the combination of a brush head having bristles mounted at one end thereon, and extending therefrom in a generally parallel group, a handle having one end bifurcated to provide spaced portions, the distal ends of which engage the brush head, and cooperating, separable connecting means carried, respectively, by the handle and the brush head, said cooperating separable connecting means being positioned between said spaced portions of the handle, between the handle and the brush head, and detachably connecting the handle to the brush head and holding the distal ends of the bifurcated portions in firm engagement with the brush head, said spaced portions of the handle and the brush head having interlocking portions which prevent relative rotation of the handle and the brush head about an axis extending lengthwise of the handle.

10. In a fountain, liquid-applying brush, the combination of a brush head having a passage through which liquid may flow, a body of bristles mounted at one end on the brush head, and extending therefrom in a generally parallel group, the brush head also having a passage for conducting liquid from said first-mentioned passage to said body of bristles, a handle having a liquid passage extending lengthwise thereof, said handle havin its inner end bifurcated to provide spaced portions, the distal ends of which engage the brush head, and cooperating, separable connecting means carried, respectively, by the handle and the-brush head and positioned between said spaced portions of the handle, between the handle and the brush head, detachably connecting the handle to the brush head and holding the distal ends of the bifurcated portions in fixed and immovable engagement with the brush head, the cooperating, separable connecting means having communicating passages extending through them and communicating, respectively, with the passage in the handle and the first-mentioned passage in the brush head, whereby liquid flowing through the handle may flow through said 00- operating, separable connecting means to the passages in the brush head and to the body of bristles.

11. In a fountain, liquid-applying brush, the combination of a brush head having a passage through which liquid may fiow, a body of bristles mounted at one end on the brush head, and extending therefrom in a generally parallel group, the brush head also havin a passage for conducting liquid from said first-mentioned passage to said body of bristles, a handle having a liquid passage extending lengthwise thereof, said handle having its inner end bifurcated to provide spaced portions, the distal ends of which engage the brush head, cooperating, separable connecting means carried, respectively, by the handle and the brush head and positioned between said spaced portions of the handle, between the handle and the brush head, detachably connecting the handle to the brush head and holding the distal ends of the bifurcated portions in fixed and immovable engagement with the brush head, the cooperating, separable connecting means having communicating passages extending through them and communicating, respectively, with the passage in the handle and the first-mentioned passage in the brush head, whereby liquid flowing through the handle may flow through said cooperating, separable connecting means to the passages in the brush head and to the body of bristles, and a valve for controlling the flow of liquid through the passage in the valve handle.

12. In a brush, the combination of a brush head having bristles mounted at one end thereon and extending therefrom in a generally parallel group, a handle having one end bifurcated to provide spaced portions, the distal ends of which engage the brush head, a coupling member carried by the handle in the space between said spaced portions, and a coupling nut rotatively mounted on said coupling member and threadedly connected to a threaded portion carried by the head of the brush for connecting the handle to the brush head and holding the distal ends of the bifurcated portions in firm engagement with the brush head.

13. In a brush, the combination of a brush head having bristles mounted at one end thereon and extending therefrom in a generally parallel group, a handle having one end bifurcated to provide spaced portions, the distal ends of which engage the brush head, a coupling member carried by the handle in the space between said spaced portions, and a coupling nut rotatively mounted on said coupling member and threadedly connected to a coupling nipple carried by the head of the brush for connecting the handle to the brush head and holding the distal ends of the bifurcated portions in firm engagement with the brush head.

14. In a fountain, liquid-applying brush, the combination of a brush head having a passage through which liquid may flow, a body of bristles mounted at one end on the brush head and extending therefrom in a generally parallel group, the brush head also having a passage for conducting liquid from said first-mentioned passage to said body of bristles, a handle having a liquid passage extending lengthwise thereof, the inner end of said handle being bifurcated to provide spaced portions, the distal ends of which engage the brush head, a coupling member carried by the handle in the space between said spaced portions, and a coupling nut rotatively mounted on said coupling member and engagin a threaded portion carried by the head of the brush for connecting the handle to the brush head and holding the distal ends of the bifurcated portions in firm engagement with the brush head, said coupling member and the threaded portion carried by the brush head having passages through them which connect, respectively, with the liquid passage in the brush handle and the liquid passages in the brush head.

15. In a fountain, liquid-applying brush, the combination of a brush head having a passage through which liquid may flow, a body of bristles mounted at one end on the brush head and extending therefrom in a generally parallel group, the brush head also having a passage for conducting liquid from said first-mentioned passage to said body of bristles, a handle having a liquid passage extending lengthwise thereof, the inner end of said handle being bifurcated to provide spaced portions, the distal ends of which engage the brush head, a coupling member carried by the handle in the space between said spaced portions, a coupling nut rotatively mounted on said coupling member and engaging a. threaded portion carried by the head of the brush for connecting the handle to the brush head and holding the distal ends of the bifurcated portions in firm engagement with the brush head, said coupling member and the threaded portion carried by the brush head having passages through them which connect, respectively, with the liquid passage in the brush handle and the liquid passages in the brush head, and a valve for controlling the flow of liquid through the passage in the handle.

ROBERT S. EISENER. DANIEL SCHOENHOLZ.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Seitz Feb. 22, 1927 

